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Diffstat (limited to 'libFDK/include/scale.h')
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diff --git a/libFDK/include/scale.h b/libFDK/include/scale.h deleted file mode 100644 index 1587f9f..0000000 --- a/libFDK/include/scale.h +++ /dev/null @@ -1,250 +0,0 @@ - -/* ----------------------------------------------------------------------------------------------------------- -Software License for The Fraunhofer FDK AAC Codec Library for Android - -© Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. - All rights reserved. - - 1. INTRODUCTION -The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements -the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio. -This FDK AAC Codec software is intended to be used on a wide variety of Android devices. - -AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual -audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by -independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part -of the MPEG specifications. - -Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer) -may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners -individually for the purpose of encoding or decoding bit streams in products that are compliant with -the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license -these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec -software may already be covered under those patent licenses when it is used for those licensed purposes only. - -Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality, -are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional -applications information and documentation. - -2. COPYRIGHT LICENSE - -Redistribution and use in source and binary forms, with or without modification, are permitted without -payment of copyright license fees provided that you satisfy the following conditions: - -You must retain the complete text of this software license in redistributions of the FDK AAC Codec or -your modifications thereto in source code form. - -You must retain the complete text of this software license in the documentation and/or other materials -provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form. -You must make available free of charge copies of the complete source code of the FDK AAC Codec and your -modifications thereto to recipients of copies in binary form. - -The name of Fraunhofer may not be used to endorse or promote products derived from this library without -prior written permission. - -You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec -software or your modifications thereto. - -Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software -and the date of any change. For modified versions of the FDK AAC Codec, the term -"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term -"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android." - -3. NO PATENT LICENSE - -NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer, -ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with -respect to this software. - -You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized -by appropriate patent licenses. - -4. DISCLAIMER - -This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors -"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties -of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR -CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages, -including but not limited to procurement of substitute goods or services; loss of use, data, or profits, -or business interruption, however caused and on any theory of liability, whether in contract, strict -liability, or tort (including negligence), arising in any way out of the use of this software, even if -advised of the possibility of such damage. - -5. CONTACT INFORMATION - -Fraunhofer Institute for Integrated Circuits IIS -Attention: Audio and Multimedia Departments - FDK AAC LL -Am Wolfsmantel 33 -91058 Erlangen, Germany - -www.iis.fraunhofer.de/amm -amm-info@iis.fraunhofer.de ------------------------------------------------------------------------------------------------------------ */ - -/*************************** Fraunhofer IIS FDK Tools ********************** - - Author(s): - Description: Scaling operations - -******************************************************************************/ - -#ifndef SCALE_H -#define SCALE_H - -#include "common_fix.h" -#include "genericStds.h" -#include "fixminmax.h" - - #define SCALE_INLINE inline - - -#if defined(__arm__) /* cppp replaced: elif */ -#include "arm/scale.h" - -#elif defined(__mips__) /* cppp replaced: elif */ -#include "mips/scale.h" - -#endif - - -#include "../src/scale.cpp" - -#ifndef FUNCTION_scaleValue -/*! - * - * \brief Multiply input by \f$ 2^{scalefactor} \f$ - * - * \return Scaled input - * - */ -#define FUNCTION_scaleValue -inline -FIXP_DBL scaleValue(const FIXP_DBL value, /*!< Value */ - INT scalefactor /*!< Scalefactor */ - ) -{ - if(scalefactor > 0) - return (value<<scalefactor); - else - return (value>>(-scalefactor)); -} -#endif - -#ifndef FUNCTION_scaleValueSaturate -/*! - * - * \brief Multiply input by \f$ 2^{scalefactor} \f$ - * \param value The value to be scaled. - * \param the shift amount - * \return \f$ value * 2^scalefactor \f$ - * - */ -#define FUNCTION_scaleValueSaturate -inline -FIXP_DBL scaleValueSaturate( - const FIXP_DBL value, - INT scalefactor - ) -{ - if(scalefactor > 0) { - if (fNorm(value) < scalefactor && value != (FIXP_DBL)0) { - if (value > (FIXP_DBL)0) { - return (FIXP_DBL)MAXVAL_DBL; - } else { - return (FIXP_DBL)MINVAL_DBL; - } - } else { - return (value<<scalefactor); - } - } else { - if (-(DFRACT_BITS-1) > scalefactor) { - return (FIXP_DBL)0; - } else { - return (value>>(-scalefactor)); - } - } -} -#endif - -#ifndef FUNCTION_scaleValueInPlace -/*! - * - * \brief Multiply input by \f$ 2^{scalefactor} \f$ in place - * - * \return void - * - */ -#define FUNCTION_scaleValueInPlace -inline -void scaleValueInPlace( - FIXP_DBL *value, /*!< Value */ - INT scalefactor /*!< Scalefactor */ - ) -{ - INT newscale; - /* Note: The assignment inside the if conditional allows combining a load with the compare to zero (on ARM and maybe others) */ - if ((newscale = (scalefactor)) >= 0) { - *(value) <<= newscale; - } else { - *(value) >>= -newscale; - } -} -#endif - -/*! - * - * \brief Scale input value by 2^{scale} and saturate output to 2^{dBits-1} - * \return scaled and saturated value - * - * This macro scales src value right or left and applies saturation to (2^dBits)-1 - * maxima output. - */ - -#ifndef SATURATE_RIGHT_SHIFT - #define SATURATE_RIGHT_SHIFT(src, scale, dBits) \ - ( (((LONG)(src)>>(scale)) > (LONG)(((1U)<<((dBits)-1))-1)) ? (LONG)(((1U)<<((dBits)-1))-1) \ - : (((LONG)(src)>>(scale)) < ~((LONG)(((1U)<<((dBits)-1))-1))) ? ~((LONG)(((1U)<<((dBits)-1))-1)) \ - : ((LONG)(src) >> (scale)) ) -#endif - -#ifndef SATURATE_LEFT_SHIFT - #define SATURATE_LEFT_SHIFT(src, scale, dBits) \ - ( ((LONG)(src) > ((LONG)(((1U)<<((dBits)-1))-1)>>(scale))) ? (LONG)(((1U)<<((dBits)-1))-1) \ - : ((LONG)(src) < ~((LONG)(((1U)<<((dBits)-1))-1)>>(scale))) ? ~((LONG)(((1U)<<((dBits)-1))-1)) \ - : ((LONG)(src) << (scale)) ) -#endif - -#ifndef SATURATE_SHIFT -#define SATURATE_SHIFT(src, scale, dBits) \ - ( ((scale) < 0) \ - ? SATURATE_LEFT_SHIFT((src), -(scale), (dBits)) \ - : SATURATE_RIGHT_SHIFT((src), (scale), (dBits)) ) -#endif - -/* - * Alternative shift and saturate left, saturates to -0.99999 instead of -1.0000 - * to avoid problems when inverting the sign of the result. - */ -#ifndef SATURATE_LEFT_SHIFT_ALT -#define SATURATE_LEFT_SHIFT_ALT(src, scale, dBits) \ - ( ((LONG)(src) > ((LONG)(((1U)<<((dBits)-1))-1)>>(scale))) ? (LONG)(((1U)<<((dBits)-1))-1) \ - : ((LONG)(src) < ~((LONG)(((1U)<<((dBits)-1))-2)>>(scale))) ? ~((LONG)(((1U)<<((dBits)-1))-2)) \ - : ((LONG)(src) << (scale)) ) -#endif - -#ifndef SATURATE_RIGHT_SHIFT_ALT - #define SATURATE_RIGHT_SHIFT_ALT(src, scale, dBits) \ - ( (((LONG)(src)>>(scale)) > (LONG)(((1U)<<((dBits)-1))-1)) ? (LONG)(((1U)<<((dBits)-1))-1) \ - : (((LONG)(src)>>(scale)) < ~((LONG)(((1U)<<((dBits)-1))-2))) ? ~((LONG)(((1U)<<((dBits)-1))-2)) \ - : ((LONG)(src) >> (scale)) ) -#endif - -#ifndef SATURATE_INT_PCM_RIGHT_SHIFT -#define SATURATE_INT_PCM_RIGHT_SHIFT(src, scale) SATURATE_RIGHT_SHIFT(src, scale, SAMPLE_BITS) -#endif - -#ifndef SATURATE_INT_PCM_LEFT_SHIFT -#define SATURATE_INT_PCM_LEFT_SHIFT(src, scale) SATURATE_LEFT_SHIFT(src, scale, SAMPLE_BITS) -#endif - -#endif /* #ifndef SCALE_H */ |